If there were no rules and everyone was free to do whatever they wanted, most people would probably behave selfishly. We need rules to help us get along together and show respect for each other. Having rules doesn’t stop people breaking them. We will always need referees and penalties, policemen and prisons. But most of us are basically honest, and knowing the rules means that we usually try to follow them. One reason we do this is to avoid punishment, but the strongest argument for following the rules is, quite simply, that it makes the world a better place for all of us.